DE3634240A1 - DRIVE SLIP CONTROL DEVICE - Google Patents
DRIVE SLIP CONTROL DEVICEInfo
- Publication number
- DE3634240A1 DE3634240A1 DE19863634240 DE3634240A DE3634240A1 DE 3634240 A1 DE3634240 A1 DE 3634240A1 DE 19863634240 DE19863634240 DE 19863634240 DE 3634240 A DE3634240 A DE 3634240A DE 3634240 A1 DE3634240 A1 DE 3634240A1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- speed
- engine
- slip control
- drive slip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
- B60K28/16—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle responsive to, or preventing, skidding of wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/20—ASR control systems
- B60T2270/211—Setting or adjusting start-control threshold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Regulating Braking Force (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
Die Erfindung betrifft eine Antriebsschlupfregeleinrichtung mit den Merk malen des Oberbegriffs des Anspruchs 1.The invention relates to a traction control device with the Merk paint the preamble of claim 1.
Eine derartige Antriebsschlupfregeleinrichtung ist aus der EP-A2 64 669 bekannt. Dort wird um ein Abwürgen des Motors zu verhindern eine weitere Motordrehmomentreduzierung unterbunden, wenn die Motordrehzahl unter die Leerlaufdrehzahl abfällt.Such a traction control device is known from EP-A2 64 669 known. There is another one to prevent the engine stalling Engine torque reduction prevented when the engine speed is below the Idle speed drops.
Gegenüber der bekannten Antriebsschlupfregeleinrichtung hat die Antriebs schlupfregeleinrichtung gemäß den Merkmalen des Anspruchs 1 den Vorteil, daß sie ein Abwürgen des Motors durch die Bremsbetätigung verhindert. Es kann nämlich vorkommen, daß bei einem früheren Einkuppeln und Ansprechen der Antriebsschlupfregelung auch die Bremsen ein Abwürgen des Motors zu stande bringen können.Compared to the known traction control system, the drive has slip control device according to the features of claim 1 the advantage that it prevents the engine from stalling due to the brake actuation. It It can happen that with an earlier engagement and response The traction control system also brakes the engine to stall can accomplish.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung in Form eines Blockdiagramms dargestellt. Dort sind mit 1 und 2 den nicht angetriebenen Rädern zugeordnete Radgeschwindigkeitsgeber und mit 3 und 4 entsprechende Meßwertgeber der angetriebenen Räder bezeichnet. Eine Auswerteschaltung trägt das Bezugszeichen 5. Mit 6 und 8 sind den beiden angetriebenen Rädern zugeordnete Stellglieder bezeichnet, bei deren Ansteuerung die Bremsen betätigt werden. Mit 7 ist ein weiteres Stellglied bezeichnet, daß bei Ansteuerung des Motormoments reduziert.In the drawing, an embodiment of the invention is shown in the form of a block diagram. There are designated 1 and 2 wheel speed sensors assigned to the non-driven wheels and 3 and 4 corresponding sensors of the driven wheels. An evaluation circuit bears the reference number 5 . Actuators assigned to the two driven wheels are designated by 6 and 8 , the brakes of which are actuated when actuated. 7 with another actuator is designated that reduces when driving the engine torque.
Wird in der Auswerteschaltung 5 festgestellt, daß eines der angetriebenen Räder durchdreht oder Durchdrehneigung zeigt, was durch Drehzahlvergleich von angetriebenen und nicht angetriebenen und/oder durch Feststellung einer zu hohen Radbeschleunigung ermittelt werden kann, so wird das zugehörige Stellglied 6 und/oder 8 angesteuert und Bremsdruck an der zugehörigen Radbremse eingesteuert.If it is determined in the evaluation circuit 5 that one of the driven wheels is spinning or has a tendency to spin, which can be determined by comparing the speed of driven and non-driven and / or by determining an excessive wheel acceleration, then the associated actuator 6 and / or 8 is activated and Brake pressure applied to the associated wheel brake.
Zeigen beide Räder Durchdrehneigung, so kann zusätzlich noch mittels des Stellglieds 7 das Motormoment reduziert werden.If both wheels show a tendency to spin, the engine torque can additionally be reduced by means of the actuator 7 .
Der Eingriff der Bremsen auf die Räder wird jedoch durch Und-Gatter 9 bzw. 10 gesperrt, wenn in einem Vergleicher 12 festgestellt wird, daß die vom Meßwertgeber 11 ermittelte Motordrehzahl unterhalb einer Drehzahl liegt, die durch ein Signal an der Klemme 13 vorgegeben ist. Der Vergleicher 12 gibt dann ein Sperrsignal auf die invertierten Eingänge der Und-Gatter 9 und 10. Vorzugsweise ist die vorgegebene Drehzahl die Motorleerlaufdreh zahl.However, the engagement of the brakes on the wheels is blocked by AND gates 9 and 10 , if it is determined in a comparator 12 that the engine speed determined by the sensor 11 is below a speed which is predetermined by a signal at the terminal 13 . The comparator 12 then outputs a blocking signal to the inverted inputs of the AND gates 9 and 10 . Preferably, the predetermined speed is the engine idle speed.
Claims (1)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863634240 DE3634240A1 (en) | 1986-10-08 | 1986-10-08 | DRIVE SLIP CONTROL DEVICE |
AT87905612T ATE64123T1 (en) | 1986-10-08 | 1987-08-27 | TRACTION CONTROL DEVICE. |
JP62505146A JPH02501293A (en) | 1986-10-08 | 1987-08-27 | Drive slip control device |
PCT/EP1987/000483 WO1988002708A1 (en) | 1986-10-08 | 1987-08-27 | Drive slippage limiting device |
EP19870905612 EP0325589B1 (en) | 1986-10-08 | 1987-08-27 | Drive slippage limiting device |
DE8787905612T DE3770635D1 (en) | 1986-10-08 | 1987-08-27 | DRIVE SLIP CONTROL DEVICE. |
US07/662,332 US5164902A (en) | 1986-10-08 | 1991-01-25 | Drive slip control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863634240 DE3634240A1 (en) | 1986-10-08 | 1986-10-08 | DRIVE SLIP CONTROL DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3634240A1 true DE3634240A1 (en) | 1988-04-21 |
Family
ID=6311282
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863634240 Withdrawn DE3634240A1 (en) | 1986-10-08 | 1986-10-08 | DRIVE SLIP CONTROL DEVICE |
DE8787905612T Expired - Lifetime DE3770635D1 (en) | 1986-10-08 | 1987-08-27 | DRIVE SLIP CONTROL DEVICE. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787905612T Expired - Lifetime DE3770635D1 (en) | 1986-10-08 | 1987-08-27 | DRIVE SLIP CONTROL DEVICE. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5164902A (en) |
EP (1) | EP0325589B1 (en) |
JP (1) | JPH02501293A (en) |
DE (2) | DE3634240A1 (en) |
WO (1) | WO1988002708A1 (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914364A1 (en) * | 1989-04-29 | 1990-10-31 | Teves Gmbh Alfred | Antibrake locking or drive slip regulation for vehicle - uses engine suction system as surface of pressure vacuum auxiliary energy needed to regulate system and during ABS or ASR operation |
DE4103635A1 (en) * | 1991-02-07 | 1992-08-13 | Bosch Gmbh Robert | ANTI-BLOCKING CONTROL SYSTEM |
DE19548564A1 (en) * | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Method and device for traction control |
US5694321A (en) | 1994-11-25 | 1997-12-02 | Itt Automotive Europe Gmbh | System for integrated driving stability control |
US5701248A (en) | 1994-11-25 | 1997-12-23 | Itt Automotive Europe Gmbh | Process for controlling the driving stability with the king pin inclination difference as the controlled variable |
US5711025A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | Driving stability control system with selective brake actuation |
US5711024A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | System for controlling yaw moment based on an estimated coefficient of friction |
US5710704A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | System for driving stability control during travel through a curve |
US5710705A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | Method for determining an additional yawing moment based on side slip angle velocity |
US5732379A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Brake system for a motor vehicle with yaw moment control |
US5732377A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Process for controlling driving stability with a yaw rate sensor equipped with two lateral acceleration meters |
US5732378A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Method for determining a wheel brake pressure |
US5742507A (en) | 1994-11-25 | 1998-04-21 | Itt Automotive Europe Gmbh | Driving stability control circuit with speed-dependent change of the vehicle model |
US5774821A (en) | 1994-11-25 | 1998-06-30 | Itt Automotive Europe Gmbh | System for driving stability control |
WO2000078584A1 (en) * | 1999-06-17 | 2000-12-28 | Continental Teves Ag & Co. Ohg | Method and device for controlling traction slip |
US8099229B2 (en) | 2008-03-03 | 2012-01-17 | GM Global Technology Operations LLC | Method and apparatus for limiting wheel slip |
DE10247243B4 (en) * | 2001-10-11 | 2015-03-26 | Continental Teves Ag & Co. Ohg | Method for improving traction control |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3167766B2 (en) * | 1991-11-29 | 2001-05-21 | 本田技研工業株式会社 | Knocking control device for internal combustion engine |
JPH05221302A (en) * | 1992-02-17 | 1993-08-31 | Mazda Motor Corp | Slip control device for vehicle |
DE4229560B4 (en) * | 1992-09-04 | 2009-07-23 | Robert Bosch Gmbh | Traction control system |
DE4236004A1 (en) * | 1992-10-24 | 1994-04-28 | Bosch Gmbh Robert | Traction control system |
US5278761A (en) * | 1992-11-12 | 1994-01-11 | Ford Motor Company | Method for vehicular wheel spin control that adapts to different road traction characteristics |
US5517414A (en) * | 1994-10-03 | 1996-05-14 | Ford Motor Company | Traction control system with active suspension |
JP3719142B2 (en) * | 2001-01-10 | 2005-11-24 | トヨタ自動車株式会社 | Vehicle traction control device |
GB0115032D0 (en) * | 2001-06-20 | 2001-08-08 | Land Rover Uk Ltd | A traction control system |
DE10234606B4 (en) * | 2002-07-30 | 2021-12-16 | Robert Bosch Gmbh | Method and device for stabilizing a vehicle |
JP2006348854A (en) * | 2005-06-16 | 2006-12-28 | Advics:Kk | Traction control device |
JP2007030807A (en) * | 2005-07-29 | 2007-02-08 | Honda Motor Co Ltd | Vehicle travel controller |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164360A (en) * | 1977-11-21 | 1979-08-14 | Texas Instruments Incorporated | Control circuit having adaptive turn-off feature for a vehicle skid control system |
DE3119144C2 (en) * | 1981-05-14 | 1985-01-17 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Anti-lock hydraulic vehicle braking system |
US4504911A (en) * | 1981-07-15 | 1985-03-12 | Robert Bosch Gmbh | Vehicle wheel brake anti-lock system with low speed control |
JPS59209946A (en) * | 1983-05-16 | 1984-11-28 | Nissan Motor Co Ltd | Anti-skid control device |
DE3416292A1 (en) * | 1984-05-03 | 1985-11-07 | Bosch Gmbh Robert | CONTROL CIRCUIT FOR THE DRIVED WHEELS OF A VEHICLE |
JPS6287630A (en) * | 1985-10-15 | 1987-04-22 | Nissan Motor Co Ltd | Traction control unit for vehicle |
DE3635095A1 (en) * | 1985-10-24 | 1987-04-30 | Volkswagen Ag | Method and device for the drive control of a motor vehicle so as to prevent undesirable spinning of the driven vehicle wheels |
CA1306784C (en) * | 1986-06-09 | 1992-08-25 | Masakazu Sakaguchi | Method for controlling slip of a driving wheel of a vehicle |
DE3784577T2 (en) * | 1986-07-24 | 1993-06-17 | Mazda Motor | VEHICLE SLINGER CONTROL DEVICE. |
JPS6331866A (en) * | 1986-07-28 | 1988-02-10 | Mazda Motor Corp | Slip controller for automobile |
JP2504009B2 (en) * | 1986-12-13 | 1996-06-05 | トヨタ自動車株式会社 | Acceleration slip control device |
JPS6487844A (en) * | 1987-09-29 | 1989-03-31 | Toyota Motor Corp | Engine brake control device |
JPH01155038A (en) * | 1987-12-10 | 1989-06-16 | Honda Motor Co Ltd | Driving wheel slip controller |
JP2605089B2 (en) * | 1988-03-23 | 1997-04-30 | 本田技研工業株式会社 | Excessive slip control of drive wheels |
-
1986
- 1986-10-08 DE DE19863634240 patent/DE3634240A1/en not_active Withdrawn
-
1987
- 1987-08-27 JP JP62505146A patent/JPH02501293A/en active Pending
- 1987-08-27 EP EP19870905612 patent/EP0325589B1/en not_active Expired - Lifetime
- 1987-08-27 DE DE8787905612T patent/DE3770635D1/en not_active Expired - Lifetime
- 1987-08-27 WO PCT/EP1987/000483 patent/WO1988002708A1/en active IP Right Grant
-
1991
- 1991-01-25 US US07/662,332 patent/US5164902A/en not_active Expired - Lifetime
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914364A1 (en) * | 1989-04-29 | 1990-10-31 | Teves Gmbh Alfred | Antibrake locking or drive slip regulation for vehicle - uses engine suction system as surface of pressure vacuum auxiliary energy needed to regulate system and during ABS or ASR operation |
DE3914364C2 (en) * | 1989-04-29 | 1998-04-09 | Teves Gmbh Alfred | Method and device for motor vehicles with gasoline engines for anti-lock control or traction control |
DE4103635A1 (en) * | 1991-02-07 | 1992-08-13 | Bosch Gmbh Robert | ANTI-BLOCKING CONTROL SYSTEM |
US5732379A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Brake system for a motor vehicle with yaw moment control |
US5732378A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Method for determining a wheel brake pressure |
US5711025A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | Driving stability control system with selective brake actuation |
US5711024A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | System for controlling yaw moment based on an estimated coefficient of friction |
US5710704A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | System for driving stability control during travel through a curve |
US5711023A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | System for determining side slip angle |
US5710705A (en) | 1994-11-25 | 1998-01-20 | Itt Automotive Europe Gmbh | Method for determining an additional yawing moment based on side slip angle velocity |
US5694321A (en) | 1994-11-25 | 1997-12-02 | Itt Automotive Europe Gmbh | System for integrated driving stability control |
US5732377A (en) | 1994-11-25 | 1998-03-24 | Itt Automotive Europe Gmbh | Process for controlling driving stability with a yaw rate sensor equipped with two lateral acceleration meters |
US5701248A (en) | 1994-11-25 | 1997-12-23 | Itt Automotive Europe Gmbh | Process for controlling the driving stability with the king pin inclination difference as the controlled variable |
US5862503A (en) | 1994-11-25 | 1999-01-19 | Itt Automotive Europe Gmbh | System for driving stability control |
US5742507A (en) | 1994-11-25 | 1998-04-21 | Itt Automotive Europe Gmbh | Driving stability control circuit with speed-dependent change of the vehicle model |
US5774821A (en) | 1994-11-25 | 1998-06-30 | Itt Automotive Europe Gmbh | System for driving stability control |
DE19548564A1 (en) * | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Method and device for traction control |
WO2000078584A1 (en) * | 1999-06-17 | 2000-12-28 | Continental Teves Ag & Co. Ohg | Method and device for controlling traction slip |
DE10247243B4 (en) * | 2001-10-11 | 2015-03-26 | Continental Teves Ag & Co. Ohg | Method for improving traction control |
US8099229B2 (en) | 2008-03-03 | 2012-01-17 | GM Global Technology Operations LLC | Method and apparatus for limiting wheel slip |
DE102009010653B4 (en) * | 2008-03-03 | 2014-03-20 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Method and device for wheel slip limitation |
Also Published As
Publication number | Publication date |
---|---|
WO1988002708A1 (en) | 1988-04-21 |
US5164902A (en) | 1992-11-17 |
DE3770635D1 (en) | 1991-07-11 |
EP0325589A1 (en) | 1989-08-02 |
JPH02501293A (en) | 1990-05-10 |
EP0325589B1 (en) | 1991-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |